Based on the estimate of 1100 deaths per year across the organization, a statistician determined the approximately 100 deaths should give a fair snapshot of the last two days of life in a PHC facility.
Statisticians have determined qualitative descriptors for specific values of each type of effect size measure (Cohen, 1988, 1992; Rosenthal, 1996).
"It's been a tremendous success," said Mr. Burchell, whose staff of demographers and statisticians helps determine the housing allotment for each town.
As part of the adaptive design, an analysis by an independent statistician will determine whether sample size adjustment is required at pre-specified times during the study.
The lead investigator and the study statistician will determine coding prior to data entry.
The principal investigator (PI) and study statistician will determine coding prior to data entry into the database which will provide coding options.
Prior to unblinding, all outcome data will be reviewed by an independent statistician to determine whether a transformation, further transformation or alternative generalised linear model is necessary (for continuous covariates); whether efficiency-improving covariates should be included in the analyses; and whether the missing data strategy appears adequate.
Prior to the start, Seymour Siwoff, the Elias Sports Bureau chief and official statistician for MLB, determined that the official method of accounting for consecutive scoreless innings would only count whole innings for starting pitchers and that if the streak extended into 1989 it would bear an asterisk.
The trial statistician (MG) independently determined to which intervention the 27 practices would be allocated, using minimisation, 16 stratifying for primary care trusts and number of partners at the practice (1 or 2, ≥3).
Statisticians of this survey determined final panel households by applying a 'Stratified Double Sampling' model.
